Bidirectional Street Light System

Introduction

Unidirectional control system which is used in watching any defect and electric leakage as a monitoring system of street light on the road is required to use FM radio, but in the other hand, bidirectional control system needs CDMA, which makes possible using not only remote control of street light switch but also remote real-time inspection for any defect, short circuit, and on/off status. Especially, operators can get a text massage into his mobile phone from the system in case of emergency.
This consists of central regulation system, bidirectional switch, and collateral equipment.

Central Control System

Functions & Features

1. Bidirectional remote monitor/control of street light equipment.
2. User interface of easy and simple web browser.
3. Direct access to internet(LAN) and mobile network.
4. Web-based Client/Server Controlling network system for accessing/communicating with hundreds of bidirectional switch.
5. SMS system to operator for defect matter and operating result.
6. Monitoring any defect, storing DB, search, and print function.
7. Group or partial on/off function and inspection.
8. Indicating function for multiple electric leakage, disconnection, safety device/lamp defect.
9. Auto completing and print function of night operating statistics, Daily work sheet.
10. Storing DB of operating facility, search, and print.
11. Input/Output function for simple modification, addition, and photo information of facility.
12. Communication through bidirectional switch, CDMA network, and wire internet(optical cable network). -(optional)

Product Components

Leg mount, web server(administration program), SMS transmitter, printer, LCD monitor, uninterruptible power supply(UPS).

Wireless Switch

Functions & Features

1. 01. An internally installed operating program and Auto operating by CDMA Timer.
2. Presetting and forced operating by central control.
3. Monitoring any opened door of junction box or flooding.
4. Monitoring power failure, service voltage ELB Trip of each circuit, electric leakage, electric current.
5. Operating by extra battery in power failure case (Alarm system).
6. CDMA modem for communicating with central controlling.
7. LCD Indicator and operating key for Time, Year, Month, Date, Control time.

Optional Details

1. 01. LAM port for communicating with central control by photonics cable network.
2. Zigbee wireless communication modem for communicating with U-City type lighting control system.
3. Zigbee wireless communication modem to cut off mobile network cost charged to the each junction box.
4. Electric circuit control, Auto returning ELB, 485 communication modem for relay board.
5. PLC modem for communicating with street light controller.
6. An internally installed PLC modem for communicating with street light controller of NLC-100 SMS.

Product Specification

1. 01. CDMA : 1595B.
2. Controlling 2 circuits as all night light and every other light system.
3. 4 circuits voltage current, Effective power, Leakage current.
4. Door sensor, Water level sensor.
5. 2 Circuits voltage.

Switch Collateral Equipment

Street Light Monitoring Switch

U-City Street Light Controller

Features

1. Individual On/Off control.
2. Monitoring any defect for light and safety device.
3. Protecting safety device.
4. Monitoring electric leakage and cutting power supply in leakage.
5. Monitoring open/short circuit for a day & night.
6. Offering control network of U-City.

U-City

1. Positioning service by tracing pendant (aged/children/patrol car).
2. Offering the street light ZigBee network an interface connected with control equipment for an electric sign, parking lot, and water supply and drainage sensor.

Optional Details

1. Monitoring open/short circuit in excavation work. (operating with day time 30V power supply system at the same time) It's possible to check open/short circuit with just one installation at the end of street lights line. More efficient and economical than the existing day time monitoring system.

Circuit Monitor